没有假装的英语翻译

He pretends not to know about it
不等于
He doesn't pretend to know about it

他不是假装知道这件事
he doesn't/didn't pretend to know

他不是假装不知道
he doesn't/didn't pretend not to know(not to have known)

你看的是谁编写的语法书呀？解释错了。两个句子不完全不同。pretend没有否定转移的用法。

他不是假装知道这件事He doesn't pretend to know about it.

He didn't pretend not knowing about it

要否定pretend ,可在前面加does not,